Error code c501

on ‎31-03-201712:02

My TiVo has gotten so so slow lately and I can't view some of my recordings or delete as it keeps coming up as error c501.I checked in the system info settings that it is no3 account in good standing and in the settings and network connection I connected and it was all ok.The error is still coming up and I've had enough. Can someone please help?Thank you